INSTALLATION:AUTOMATIC:1. Open OpenIV
2. Go to Tools -> Package Installer
3. Find the "VWE.oiv" file and open it
4. Click on "Install"
5. Choose the "mods" folder option and wait for it to finish the installation

MANUAL (with liveries):1. Open the VWE.oiv file with WinRar/7Zip
2. Open the assembly.xml file with Notepad/Notepad++
3. Follow the installation paths in the assembly.xml file and place the files in their folders

MANUAL (without liveries):1. Open the VWE.oiv file with WinRaR/7Zip
2. Find the folder called "vwe" with the dlc.rpf file inside it
3. Go to \update\x64\dlcpacks and create a folder called "vwe" (withoute quotes)
4. Place the dlc.rpf from the "vwe" folder inside it
5. Go to \update\update.rpf\common\data and open the dlclist.xml file
6. Inside the file add dlcpacks:vwe\ and save it

INSTALLATION:AUTOMATIC:1. Open OpenIV
2. Go to Tools -> Package Installer
3. Find the "VWE.oiv" file and open it
4. Click on "Install"
5. Choose the "mods" folder option and wait for it to finish the installation

MANUAL (with liveries):1. Open the VWE.oiv file with WinRar/7Zip
2. Open the assembly.xml file with Notepad/Notepad++
3. Follow the installation paths in the assembly.xml file and place the files in their folders

MANUAL (without liveries):1. Open the VWE.oiv file with WinRaR/7Zip
2. Find the folder called "vwe" with the dlc.rpf file inside it
3. Go to \update\x64\dlcpacks and create a folder called "vwe" (withoute quotes)
4. Place the dlc.rpf from the "vwe" folder inside it
5. Go to \update\update.rpf\common\data and open the dlclist.xml file
6. Inside the file add dlcpacks:vwe\ and save it

@zanesix Yes, it does. That note was added there with this update. There is plenty of free IDs but unfortunately IVPack uses almost all of them, if I remember correctly there were around 3 empty ones left that IVPack hadn't used. The rest of the IDs that this pack needed had to be taken from vanilla V vehicles.
Whenever the next GTA Online DLC rolls out those new vehicles will use even more of the IDs currently in use by IVPack causing the IVPack vehicles to start using some of the IDs currently in use by the vehicles in this pack and causing this pack to start using IDs from even more vanilla V vehicles. Once that happens I'll try to start using the IDs from vehicles that are rarely used by players in the game.
The only fix for this is that Rockstar increases the amount of available IDs in the game, which I believe is possible but who knows if they'll actually do it or if they'll just find some other way around that that only works for their DLCs.

For first this mod is great... and have no much problem with classic gta vehicle names ... but what's really f bad is that car handling it's terrible like in V vanilly without realistic vehicle handling mod is almost unplayable neither with 300 or 367 vehicles

@satyr If it matters to you so much it's not hard to just either edit the handling to what you want or edit vehicles.meta so the cars in the pack use the handling of base game cars. Oh and by the way, you're entitled to your opinion but I don't appreciate you calling the handling me and others have worked hard on "terrible" and "unplayable"